Correct Option: D

The Salt Satyagraha started on March 12, 1930, with the undertaking of the Dandi Yatra (Dandi March). The triggering factor for this movement was the British monopoly of salt trade in India and the imposition of a salt tax. According to the contemporary British laws, the sale or production of salt by anyone but the British government was a criminal offence. The goals of the movement were to end the British monopoly on salt, decrease dependence on foreign cloth, reduce land revenue assessments, build unity among Hindus and Muslims of all economic and social classes, and ultimately end British colonial rule over India and declare Purna Swaraj (complete independence).